seligmann



(No Model.) 3 Sheets-Sheet L. SELIGMANN.

HEATING FEED WATER.

No. 392,078. Patented Oct. 30, 1888.

3 SheetsSheet 2.

L. SELIGMANN.

HEATING FEED WATER.

(No Model.)

No. 392.073. Patented Oct. 30, 1888.

N. PETERS. PholnLilhognpher. Waihingmn, n C.

3 Sheets--Shet a.

(No Model.)

L. SELIGMANN.

HEATING FEED WATER.

PATENT tries.

LEON SELIGMANN, OF SARATOV, RUSSIA.

HEATING FEED-WATER.

SPECIFICATION forming part of Iietters Patent No. 392,073, dated October 30, 1888.

Application filed March 2, 1888. ScrialNo. 265,940. (No model.)

To all whom it may concern:

Be it known that I, LEON SELIGMANN,2L subject of the Czar of Russia, anda resident of Saratov, Russia, have invented certain new and useful Improvements in Heating Feed- Water, of which the following is a specification.

This invention relates to feed-water heaters for locomotives, and ithas for its object to pro vide efficient means for preheating the feedwater with a view to economizing fuel.

To these ends the invention consists in the combination, with the locomotive-boiler, of a multitubular feed-water heater arranged in front of the boiler within the smoke-box in such amanner that the tubes of the heater form a continuation of the boiler-tubes, and in combination therewith of suitable connections between the heater and tender and between said tender and the water-space of the boiler, substantially as hereinafter described, and as set forth in the claims.

The invention further consists in the combination, with the feed-water heater and the circulating-pipes,of an injector and means for working the injector with the exhaust-steam of the engines, or a portion of such exhauststeam to accelerate the circulation of the feedwater, substantially as hereinafter fully described, and as set forth in the claims.

The invention further consists in the combination, with the feed water heater, the tender, the circulating-pipes, and the injectors for feeding the water to the boiler, of feedpumps operating to feed the preheated water to the-boiler when such water has acquired a temperature higher than that compatible with the good operation of the feed-injectors, substantially as hereinafter described, and as set forth in the claims.

The invention further consists in certain structural features and combinations of parts,

substantially as hereinafter fully set forth,and pointed out in the claims.

Referring to the drawings, Figure l is an elevation of a locomotive to which my improvements are applied. Fig. 2 is a vertical transverse section taken through the smokeboX of a locomotive, showing the feed-water heater and its connections and the exhauststeam pipe leading to the injector in elevation. Fig. 3 is a longitudinal vertical section of the front portion of a locomotive, illustrating a portion of my improved feed-water heating devices. Fig. 4: is a partial plan and partial horizontal section of a portion of a locomotive, showing the feed-pumps and connections and means for operating the same. Figs. 5, 6, and 7 are detail views,drawn on an enlarged scale, of the injector worked by the exhaust-steam. Figs. 8 and 9 are like views of the exhauststeam pipe connected with the injector. Figs. 10 and 11 are longitudinal secti0ns,also drawn on an enlarged scale, ofa modification in the arrangement of the circulating-pipes,whereby the injector may be dispensed with.

In the drawings, B indicates the locomotiveboiler; b, the fire-tubes thereof; B, the smokeboX, and E the exhauststeam ducts or pipes, which latter converge and unite into a single pipe, E. At the point ofjunction of the two pipes E, leading to the exhaust-chambers of the engines on opposite sides of the locomotive, is arranged the funnel-shaped or otherwise enlarged end of a pipe, 1?, Figs. 2, 3, 8, and 9, which pipe P is connected to an injector, hereinafter to be described.

It will be observed that the funnel-shaped or otherwise enlarged endp of the pipePtakes up nearly the entire space of the pipe E at the point of junction 'of the two pipes E, so that the major portion of the exhaust-steam will pass into said pipe 1? to the injector, leaving, however, sufficient space for exhauststeam to pass into the stack B" to produce the necessary draft.

The mouthp of the pipe P is held in proper position by a set-bolt, 1), Figs. 2 and 8, the junction of the two pipes forming a guide or directing-cone, e, as shown in said Figs. 2and 8, thus directing the bulk of the exhaust-steam into the mouth of the pipe P.

In front of the boiler is arranged the feedwater heater H,which is a multitubular boiler, whose tubes h may correspond in number and location to those of the boiler and form substantially a continuation of said bOilertubes.

The feed water heater H may have any suitable form, and need not necessarily have as many tubes as the boiler, the dimensions of the heater depending in a great measure on the capacity of the boiler, and in existing 10.- comotives on the capacity of the smoke-box.

Apipe, C, leading from the bottom of th' ICC feed-waterheater and communicating with the water-space thereof, is extended under the lecomotive, and is connected with the waterspace of thetenderT, said pipe being provided with a stop-cock, c, by means of which communication may be established between said pipe and the tender and the feed-water injectors I through the medium of a branch pipe, i, as shown in Fig. 1.

To one end of the feed-water heater, and communicating with the water-space thereof, is connected a branch pipe, (Z, that connects the return-pipe D with said feed-water heater in rear of an injector-casing, i,in which is arranged an injector, 1, Figs. 1, 2, 5, 6, and 7. The injector is connected with the exhauststeam pipe 1?, and is provided with a stopcock, I, under the control of the engineer through the medium of the operating-rod It, that extends to the cab of the locomotive.

The pipe D and rod R are supported by standards (1, secured to the platform of the locomotive, as shown in Fig. l.

The return-pipeD is provided with a stopcock,D,within reach of the engineer, by opening which and the stop-cock c a circulation of water is established from the tender to the feed-water heater through pipe 0, and from said iced-water heater back to the tender through branch d and return-pipe D.

If it is desired to accelerate the circulation of the feed-water to and from the tender and add an increment of heat, the stop-cock I is opened to admit exhaust-steam to the injector I, thereby increasing the velocity of the flow of water in the circulating-pipes and utilizing the heat of the exhaust-steam to increase the temperature of said water, said steam being condensed as it commingles with the feed- Water.

It is well known that the feed-injectors do not work properly when the temperature of the feed-water exceeds Celsius, and in order to utilize the feed-water when heated above 65 Celsius independently of the injectors I have provided feed-pumps F, that are connected with the pipe D, or with the tender by pipes f, a suitable valve, F, being provided for each pump, said valves being controlled by the engineer through the medium of rods R, a lever, L, connected with the valve-stem, and suitable articulated connecting-rods, r 1", connecting the levers L with the rods R; and f are the exhaust-pipes of the pumps.

The pumps F are worked from the cut-off eccentrics by suitable condecting-rodaR,eonnected with the pump-plungers, as shown in Fig. 4%.

If it is desired to feed water to the boiler at normally-lower temperatures than those it is capable of acquiring when the exhaust-steam is used, the injector I is dispensed with and the exhaust-steam pipe inclosed in the returnpipe D, the heated water being either pumped directly from pipe D into the boiler or fed thereto by the usual injectors.

The exhaust-steam pipe P and the pipe D are connccted'by a branch pipe, 1), provided with a stop-cock, so as to admit of the exhauststeam being passed into the water in pipe D to further heat the same, as shown in Figs. 10 and ll.

In order that the engineer may ascertain the temperature of the leedwvater, the tender is provided with a thermometer, which I have deemed unnecessary to show in the drawings, try-cocks being also provided for purposes well understood.

I claim- 1. The combination, with a locomotiveboiler, of a feed-water heater, a pipe connect ing the heater with the tender, a return-pipe for returning the water from the heater to the tender, and a steam-injector interposed in the return-pipe, for the purpose of accelerating the circulation of the water, substantially as and for the purposes specified.

2. The combination, with a locomotive boiler, of a feed-water heater, a pipe connecting the heater with the tender, a return-pipe for returning the water from the heater to the tender, an injector interposed in the returnpipe, and a pipe connecting the injector with the exhaust-pipe of i the locomotive for the purpose of utilizing the exhaust-steam for accelerating the circulation of the feed-water,and for further heating the same, substantially as described.

3. The combination,with a locomotive, of a feed-water heater arranged in the smoke-box of the locomotive, exhaust-pipes extending from the engine along said heater and uniting into one pipe above the same, and a pipeprojecting into the enlarged space formed at the junction of the two pipes, said pipe having a bell-shaped or enlarged mouth occupying nearly the whole of said space, a pipe for conducting the water from the tender to the heater,a pipe for returning said water from the heater to the tender, and an injector connected with. the return-pipe and with the bellmouthed exhaust-steamcollecting pipe,substantially as and for the purposes specified.

i. 'lhe combinatiomwith a locomotive, of a feed-water heater arranged in the smoke-box of the locomotive, exhaust-pipes extending from the engines along said heater and uniting into one pipe above the same, and a pipe projecting into the enlarged space formed at the junction of the two pipes, said pipe having a bell-shaped or enlarged mouth occupying nearly the whole of said space, a pipe for conducting the water from the tender to the heater, a pipe for returning said water from the heater to the tender, an injector con nected with the return-pipe and with the bellmouthed exhaust-steam-collecti ng pipe, avalve interposed between the injector and exhauststeam pipe, and a valve-rod connected with said valve and extending to the engineers cab,substantially as and for the purposes specified.

5. The combination,with a locomotive and a feed-water heater arranged in the smokebo'x thereof and adapted to be heated by the waste seaov 3 gases and products of combustion, of a pipe for conducting the feed-water from the tender to the heater, a pipe for returning the water from the heater to the tender, feed-injectors for injecting the water into the boiler, and feed-pumps connected with the tender or return-pipe and operated from the cut-off eccentric crankshaft, substantially as and for the purposes specified.

6. The combination, with a locomotiveboiler and a feed-water heater arranged in the smokebox thereof and adapted to be heated by the waste gases and products of combustion, of a pipe for conducting the water from the tender to the heater, a pipe for returning the water from the heater to the tender, and a pipe contained within the return-pipe connected with the exhaust-steam pipes, substantially as and for the purposes specified.

7. The combination, with a locomotiveconnected with the return-pipe, substantially 30 as and for the purposes specified.

In testimony that I claim the foregoing as my invention I have signed my name, in pres ence of two witnesses, this 28th day of December, 1887.

LEON SELIGMANN.

\Vitnesses:

M. DANZIGER, L. OHIzEs. 

